Domain Blocker

Block websites by adding their domain to a list. There are two ways to block a domain. You can go to the extensions HOME/options page to manually add the domain. Or you can click on "ADD DOMAIN" within the extension's popup page.
What is Domain Blocker?
Domain Blocker is a Firefox add-on that allows you to block websites by adding their domain to a list. It offers two ways to block a domain and provides a simple HTML page to inform you of the blocked content. The add-on enables you to manually add domains or import them from a text file. It saves all data locally and includes an option to download and backup your blocked domain list. Domain Blocker is a fun small side project with an intuitive interface and an icon from juicy_fish.

Add-on stats

Users: 51
Rating: 4.00 (2)
Version: 1.9 (Last updated: 2022-08-18)
Creation date: 2022-05-11
Weekly download count: 3
Firefox on Android: No
Risk impact: High risk impact
Risk likelihood: Low risk likelihood
Manifest version: 2
Permissions:
  • webRequest
  • webRequestBlocking
  • <all_urls>
  • storage
  • contextMenus
  • tabs
Size: 4.19M
URLs: Website

Other platforms

Not available on Chrome
Not available on Edge
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Add-on summary

You can virtually add any domain to a list. When you try to visit the website it'll redirect you a simple HTML page stating what was blocked. That is assuming you have added the domain to the list.

There are two ways to block a domain. You can go to the extensions HOME/options page to manually add the domain (in the correct format). Or you can click on "ADD DOMAIN" within the extension's popup page.

Format consist of any number of subdomain + domain + top level domain. For example store.google.com OR google.com.

Blocking store.google.com WILL NOT block google.com. However, blocking google.com WILL block store.google.com.

Sometimes, ad blockers don't block everything on a website. By manually adding the domain of the ad you should be able to block it. For backup purposes, you will be able to download your list as a simple text (.txt) file. You can also import that same text file in case your list is somehow lost. Just know that importing the text file will overwrite any current existing list.

Also note that there is no database connected to this add-on. Everything is saved locally. Which is why you should download your list every so often.

The easiest way to view the extension's HOME/options page in its entirety is to click on "HOME" button within the extension's popup page. You can also do this within the context menu (right click on a page).

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User reviews

simple and convenient solution. helps get rid of annoying pop-up windows on sites for downloading files. Unfortunately, the function of editing the list of blocked domains is poorly implemented, but it is possible to save this list to a text file.
by Alex_4X, 2024-08-28

I did not install the plug-in. As a privacy-conscious individual, it concerns me that this add-on requires the "Access your data for all websites" permission. This seems suspicious and unnecessary, given the technical details of how the internet works and the Firefox documentation. It appears that blocking websites is doable without the "Access your data for all websites" permission, as suggested by the existence of the "Liberty Arrow" add-on by Gary Strivin'.
by TechSavvy, 2023-08-05
View all user reviews

Add-on safety

Risk impact

Domain Blocker requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk likelihood

Domain Blocker has earned a fairly good reputation and likely can be trusted.

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